Although the EMG-85 Humbucker has more measurable output than the 81, its frequency response and string interface are different. The 85 uses 2 Alnico magnet-loaded coils with a wide aperture to maintain a beefy low end and a fatter top end. Because of a more natural tone, it works great as a rhythm and blues pickup because it has loads of output but isn’t muddy. It’s a perfect choice as a rhythm pickup in combination with an 81 in the bridge. Installations are available with JD Kustom.